Equipment information:

IFR AN 1840 Spectrum analyzer
Manufacturer:
IFR
Model: AN 1840
Date: 1997
Category: Measurement instruments
Group: Spectrum analyzer
Description:
Information:
                                    The AN1840 is a microprocessor controlled, digitally
synthesized spectrum analyzer. The AN1840 utilizes a numeric
keypad, dedicated function keys, multitask Soft Function
Keys and a high resolution LCD to display, enter and edit
functions and data. Testing is done manually using external
front panel controls or remotely through the RS-232 or
IEEE-488 external interface. Microprocessor controlled
memory allows storage and recall of parameters for each of
the major testing modes as well as storage and recall of
traces for signal comparison.
1-2 STANDARD FEATURES
The AN1840 Spectrum Analyzer spans a range from 0 Hz to 26,5
GHz, at up to +30 dBm. The AN1840 input impedance is 50 Ω.
The AN1840 operates as a Spectrum Analyzer, Frequency
Counter, Digital Oscilloscope or AM/FM Receiver.
1-2-1 DISPLAY
The AN1840 Display is a color VGA thin film transistor (TFT)
LCD. The graticule area on the LCD has 500 horizontal pixels
by 256 vertical lines. The Display shows up to 4 traces on
the screen for comparison of live or previously stored
signals. The 80 dB of dynamic range in the Logarithmic
display mode is expandable to 120 dB. The Linear display
mode provides dB units in addition to the regular power and
voltage units, eliminating the need for external conversions.
1-2-2 MEASUREMENTS WITH THE AN1840 SPECTRUM ANALYZER
The AN1840 tests and measures spectral purity, mixer
products, modulation, carrier levels, suppression in Single
Side Band Radios, harmonic levels, RF, EMI, FM deviation, AM
% modulation, signal limits and distortion. The AN1840 is
not limited to only these measurements.
1-2-3 INPUT LEVEL
Maximum input level to the AN1840 is +20 dBm with <10 dB
internal attenuation or +30 dBm with >10 dB internal
attenuation. Maximum pulsed level is +40 dBm with >10 dB
internal attenuation.
CAUTION: SIGNALS EXCEEDING THE MAXIMUM INPUT LEVEL OF +30
dBm MAY CAUSE DAMAGE TO THE SPECTRUM'ANALYZER.
1-2-4 MARKERS
The AN1840 Spectrum Analyzer incorporates the use of single
and dual markers on the Display. Markers provide easy
measurement of any portion of displayed signal. The Delta
function shows differences in levels and time or frequency.
Markers have peak search capability.
1-2-5 EXTERNAL ATTENUATION/GAIN OFFSET
An offset value compensating for external attenuation and
gain eliminates manual calculations.
By setting an offset value equal to the sum of all external
attenuation and gain factors, the AN1840 automatically
displays true levels for signals requiring amplification or
attenuation prior to entry into the AN1840. The offset also
compensates for losses present when dealing with antenna
factors.
1-2-6 FREQUENCY COUNTER
The frequency counter provides selectable resolution at
narrow or wide frequency span settings. Resolution is set to
1, 10, 100 or 1000 Hz.

These manuals are available for the above equipment:

IFR -- AN 1840 -- User Manual
File name: IFR-6780-Manual-Page-1-Picture
Manual Type: User Manual
Pages: 272
Size: 8.94 Mbytes (9379468 Bytes)
Language: english
Revision:
Manual-ID/Number: 1002-0401-200
Date: 1997
Quality: Scanned document, all readable.
Upload date:
MD5: 491164bc8c73c7b8400db1d89c002958
ed2kID: a484b31ed95538e7145964ee476d2418
Downloads: 80 since 25 May 2015
Information:
This manual contains instructions for operating the AN1840 9
kHz-26.5 GHz Spectrum Analyzer. The instruction level is
relatively basic and presupposes no previous experience on
the part of the operator with a Spectrum Analyzer of this
type. A basic understanding of communication electronics and
practical troubleshooting methods is helpful. It is strongly
recommended that the operator be thoroughly familiar with
Sections 1 through 4 of this manual before attempting to
operate the unit.
ORGANIZATION
The AN1840 Operation Manual is composed of the following
sections:
SECTION 1 - INTRODUCTION
Provides an introduction to the unit and a brief overview of
unit functions.
SECTION 2 - INSTALLATION
Provides a step-by-step procedure for placing the AN1840
into operation.
SECTION 3 - DESCRIPTION OF CONTROLS. CONNECTORS AND INDICATORS
Identifies and functionally describes all AN1840 controls,
connectors and indicators. Provides complete descriptions of
all Display operation screens, menus and parameters.
SECTION 4 - OPERATION
Provides general procedures for operating the AN1840 and
test applications, using the AN1840 to measure various types
of input signals,
SECTION 5 - PERFORMANCE EVALUATION
Identifies and explains procedures the operator can use to
insure the AN1840 is performing properly.
SECTION 6 - REMOTE OPERATION
Contains procedures for configuring and operating the AN1840
remotely via GPIB or RS-232 external connections. Lists unit
specific commands for remote operations and commands
mandated by IEEE-488.2 1987.
SECTION 7 - OPTIONS
Contains information on the Tracking Generator (Option 02)
and Quasi-Peak Detector (Option 08). Provides a general
procedure for measuring Electromagnetic Interference (EMI)
using the Quasi-Peak Detector.
IFR-6780-Manual-Page-1-Picture
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